first of all when you are ready to tell your family about the person your dating who is interracial sit them down and be like i am with this person because he or she is good to me and is always with me when i need them and it is who i want to be with
Step2
and then tell them that you have always excepted what they have done and that if they as your family care about you tell them that no matter who you date they should accept you and who you are with
Step3
If your family tries to treat and or act different around your partner tell them in front of him or her hey this is who i am with you should not treat him or her any different for the simple fact that you love each other
Tips & Warnings
if none of this work and you and your partner are still together you have each other and each other should support one another and no matter what anyone says if you love that person stay with them it will all work out in the long run ii know my parents did not accept my boyfriend but i stayed with him anyway we have been together for 4 years and my paretns accept him now and love him as their own